* {
			padding: 0;
			margin: 0;
			font-family: "微软雅黑";
			list-style: none;
		}
		a {
			text-decoration: none;
		}
		img{
			display: block;
			border: 0;
		}
		button{
			border: none;
			outline: none;
			background: none;
		}
		.clearfix:after{
				content: "";
				display: block;
				height: 0;
				overflow: hidden;
				clear: both;
			}
			.clearfix{
				*zoom: 1;
			}
		




.main-center-container{
	width: 1200px;
	margin: 0 auto;
}






.main-head{
	background: white;
	height: 164px;
}
@media only screen and (max-width: 766px) {
	.main-head{
		display: none;
	}
}
.main-head-top{
	height: 40px;
	background: rgb(243,243,243);
}
@media only screen and (max-width: 414px) {
	.main-head-top{
		display: none;
	}
}
.main-head-top-mail img{
	float: left;
	margin: 16px 10px 10px 24px;
}
.main-head-top-mail a{
	color: #000000;
	float: left;
	/*margin: 5px;*/
	line-height: 40px;
}
.main-head-top-mail a:hover{
	color: red;
}
.main-head-top-right{
	color: #000000;
	float: right;
	margin-right: 16px;
	line-height: 40px;
}
.main-head-top-right:hover{
	color: red;
}
/*.main-head a{
	float: left;
}*/
/*.main-head .logo-TYUT{
	margin: 40px 10px 20px 20px;
}*/
.main-head .logo-chemical{
	width: 300px;
	height: auto;
	padding: 36px 0 0 20px;
}
.main-head .main-center-container{
	height: 100%;
	background-image: url(../img/main-head-pic.png);
	background-repeat: no-repeat;
	background-position: right; 
}
@media only screen and (max-width: 840px) {
	.main-head .main-center-container{
		background-size:300px ;
		background-position: right center; 
	}	
}



.main-banner {
	width: 100%;
	height: 220px;
	overflow: hidden;
}

.main-banner img {
	width: 100%;
	height: 100%;
	object-fit: cover;
}
@media only screen and (max-width: 414px) {
	.main-banner {
		height: 140px;
	}		
}
@media only screen and (max-width: 375px) {
	.main-banner {
		height: 120px;
	}		
}
	




.main3 .main3-card{
	width: 31.33%;
	height: 400px;
	margin: 22px 1%;
	float: left;
	background: #fff;
	overflow: hidden;
}
@media only screen and (max-width: 1200px){
	.main3 .main3-card{
		width: 46%;
		margin: 22px 2%;
	}
}
@media only screen and (max-width: 766px){
	.main3 .main3-card{
		width: 96%;
		height: auto;
	}
}
.main3 .main3-card-head{
	height: 59px;
	width: auto;
	background: #fff;
	border-bottom: #daebf2 1px solid;
	border-left: #68b2d1 4px solid;
	position: relative;
	z-index: 1;
	
}
	
.main3 .main3-card-head-text{
	color: #68b2d1;
	font-size: 18px;
	font-weight: bold;
	position: absolute;
	height: 59px;
	line-height: 59px;
	/*top: 18px;*/
	left: 20px;
	/*padding-right: 16px;
	border-right: 1px solid #999999;*/
}
.main3 .main3-card-head-text2{
	font-size: 12px;
	color: #777;
	position: absolute;
	left: 114px;
	top: 19.5px;
	height: 20px;
	line-height: 20px;
	padding-left: 16px;
	border-left: 1px solid #777;
	
	/*单行文本溢出解决方案*/
    text-overflow: ellipsis;
    overflow: hidden;
    white-space: nowrap;
}
@media only screen and (max-width: 766px) {
	.main3 .main3-card-head-text2 {
		display: none;
	}
}
.main3 .main3-card-head-more{
	font-size: 12px;
	color: #777777;
	position: absolute;
	right: 27px;
	height: 59px;
	line-height: 59px;
	transition: all 0.5s; 
}
.main3 .main3-card-head-more:hover{
	color: red;
}



/*列表样式*/
.main3 .main3-card-body{
	height: 282px;
	padding: 30px 4%;
}
.main3 .main3-card-body ul{
	width: 100%;
}

.main3 .main3-card-body ul li{
	clear: both;
	display: block;
	height: 36px;
}

.main3 .main3-card-body ul li img{
	float: left;
	margin: 6px 2% 0 0;
}
.main3 .main3-card-body ul li a{
	float: left;
	width: 60%;
	font-size: 14px;
	color: #272727;
	transition: all 0.5s;  
	
	text-overflow: ellipsis;
	overflow: hidden;
	white-space: nowrap;
}
.main3 .main3-card-body ul li a:hover{
	color: red;
}
@media only screen and (max-width: 1200px){
	.main3 .main3-card-body ul li a{
		width: 70%;
	}
}
@media only screen and (max-width: 950px){
	.main3 .main3-card-body ul li a{
		width: 92%;
	}
}
.main3 .main3-card-body ul li span{
	float: right;
	width: 29%;
	font-size: 14px;
	color: #272727;
}
@media only screen and (max-width: 1200px){
	.main3 .main3-card-body ul li span{
		width: 19%;
	}
}
@media only screen and (max-width: 950px){
	.main3 .main3-card-body ul li span{
		display: none;
	}
}
/*列表样式结束*/


.main3-card2-img-box{
	float: left;
	width: 184px;
	height: 120px;
	overflow: hidden;
	margin: 0 24px 24px 0;
	background: #dcdcdc;
}
.main3-card2-img-box img{
	width: 100%;
	height: auto;
	transition: all 0.5s;
}
.main3-card2-img-box img:hover{
	transform: scale(1.1);
}
.main3-card2-text{
	text-indent: 2em;
	font-size: 14px;
	color: #7b7b7b;
	
	/*定行文本溢出解决方案       （5行）*/
    overflow : hidden;
	text-overflow: ellipsis;
	display: -webkit-box;
	-webkit-line-clamp: 5;
	-webkit-box-orient: vertical;
	line-height: 1.7em;
	*line-height: 1.6em;
	height: 8.12em;
}



/*重要导航*/
.main3-card3-nav-box{
	color: #75b9d5;
	float: left;
	width: 50%;
	height: 85px;
	line-height: 85px;
	text-align: center;
}
.main3-card3-nav-box i {
	margin-right: 4px;
}
.main3-card3-nav-box:hover {
	background: #75b9d5;
	color: #fff;
}
@media only screen and (min-width: 766px) and (max-width: 950px) {
	.main3-card3-nav-box{
		
	}
}
@media only screen and (max-width: 766px) {
	.main3-card3-nav-box{
		
	}
}




.main-foot{
	/*margin-top: 80px;*/
	padding-top: 66px;
	padding-bottom: 30px;
	background: #68b2d1;
}
.main-foot p{
	font-size: 14px;
	text-align: center;
	margin: 10px;
	color: #fff;
}
.main-foot p a{
	color: #fff;
}



@media only screen and (max-width: 1200px) {
	.main-center-container{
		width: 100%;
	}
}

						
}


@media only screen and (max-width: 766px) {
		.main-head{
			display: none;
		}			
}
		
